(Hopefully) I've got an easy question this time: Why doesn't feof() (from stdio.h) use _CRTIMP?
If there is no _CRTIMP (aka dllimport) on the definition for feof, you get this when you call it: 402cef: call 402b90 <feof> Note that this does NOT call the import. Instead it calls this stub which *then* calls the import: 0000000000402b90 <feof>: 402b90: jmp QWORD PTR [rip+0x57b6] # 40834c <__imp_feof> Yes, this will work. But this unnecessary step is a waste of time. Adding _CRTIMP calls the import directly: call QWORD PTR [rip+0x5657] # 40834c <__imp_feof> Is this intentional? Or a bug? I'm asking about feof, but it appears there are a bunch of functions in stdio that don't have this (and a bunch that do). If there's a pattern here, I don't see it. dw ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Mingw-w64-public mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
